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		<meta charset="utf-8">
		<title>通配符</title>
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			*{
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			  font-size: 18px;
			  color: red;
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		<h1>我是h1标签</h1>
		<h2>我是h2标签</h2>
		<div>我是div标签</div>
		<p>我是段落p标签</p>
		<span>我是span标签</span>
		<em>我是斜体标签</em>
		<strong>我是strong标签</strong>
		<span>我是span标签</span>
		<b>我是b标签</b>
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